Malicious PDF — malware analysis report

Static analysis result for SHA-256 1059c99e8de27dfc…

MALICIOUS

PDF

73.4 KB
MD5: 2cb84be95cf8439d12378b092ec0f840 SHA-1: fd9b9b60d8801359b5c8d03d00fe0248ce5c639e SHA-256: 1059c99e8de27dfc7fc3d1c586f93629e66ec1823603fea86e7a8092f3f460ce
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. An embedded XFA form and script payload are present, indicating an attempt to execute arbitrary code. The embedded JavaScript, though obfuscated, likely contributes to the exploitation process by preparing or delivering the final payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000034e.bin
0c20f4a36322a0d0188eb7a23490e4784c2c75c6bf27b1023d855f37af742eb0
pdf-embedded-script PDF raw stream script payload at offset 0x34E 74422 bytes